Create a widget compatible with other Jupyter notebook widgets

Ginga already has a web browser back end (see #168) and there is a Ginga viewer that is tailored for working in/with Jupyter notebooks.

This issue is exploring whether a native Jupyter widget can be used as the back end of a Ginga viewer. I’ve created a new ginga.web.jupyterw back end module. It uses the Jupyter Image widget as the surface and subclasses the PIL backend for the rendering. You can see some initial experiments of the use in this notebook.

The most useful feature of this version is that (as the example shows) the widget can be packed in with other Jupyter widgets and the packing and interaction between the widgets all just works.

The downside is that currently there is no support for UI events in a Jupyter image widget–therefore there are no cursor or keyboard interactions possible with the widget. Everything must be controlled by other widgets or programmatically.

[pllim]

impressive astro image

An image of space cats is always an option… 😸

[mwcraig]

https://github.com/eteq/catterplotpy